1. KEY CONCEPT Cellular respiration is an aerobic process with two main stages.

2. Glycolysis is needed for cellular respiration
Glycolysis is needed for cellular respiration. Glycolysis takes place in the cell’s cytoplasm
The products of glycolysis enter cellular respiration when oxygen is available.
two ATP molecules are used to split glucose
four ATP molecules are produced (net gain of 2!!)
two molecules of NADH produced
two molecules of pyruvate produced

3. Glycolysis is needed for cellular respiration.
The products of glycolysis enter cellular respiration when oxygen is available.
The electrons from glucose are stored in NADH
ATP can be used as immediate energy

4. Pyruvate is broken down in the cytoplasm before the Krebs cycle.
The Krebs cycle is the first main part of cellular respiration. The Krebs cycle takes place inside the mitochondria
Pyruvate is broken down in the cytoplasm before the Krebs cycle.
Pyruvate is broken down into Acetyl CoA
carbon dioxide released
NADH produced
coenzyme A (CoA) bonds to two-carbon molecule to an molecule in the Krebs cycle
The Krebs cycle begins

5. The Krebs cycle produces energy-carrying molecules.

6. The Krebs cycle produces energy-carrying molecules.
After acetyl coA joins with the krebs cycle the cycle begins
Citric acids is formed next
Electrons from citric acid are stripped and stored on NADH and CO2 is released
More electrons are stripped off and stored on NADH
ADP is converted to ATP and more CO2 is released
Once again, electrons are stripped off but this time they are stored on both NADH and FADH

7. The Krebs cycle produces energy-carrying molecules.
Summary:
Each pyruvate produces
3 CO2 (one when it’s converted to acetyl coA before krebs)
4 NADH (one when it’s converted to acetyl coA before krebs)
1 FADH
1 ATP
*******remember glucose produces 2 pyruvate, so all of the above totals are multiplied by 2********

8. The electron transport chain is the second main part of cellular respiration.
The electron transport chain uses NADH and FADH2 to make ATP.

9. The electron transport chain is the second main part of cellular respiration.
The electron transport chain uses NADH and FADH2 to make ATP.
The breakdown of one glucose molecule produces up to 38 molecules of ATP.
ATP synthase produces ATP
oxygen picks up electrons and hydrogen ions
water is released as a waste product